Emission controller for development apparatus
AssigneeXerox Corporation
InventorsDon B. Jugle, Anthony F. Lipani
Life of this patent
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Abstract
A system for minimizing free airborne particles generated by movement of a multi-component developer material within a development housing of an electrostatographic machine. The multi-component material includes a relatively large carrier component and a relatively small toner component for developing electrostatographic images. A filter member with predetermined pore size is positioned across the flow of the multi-component material and connected to a source of negative pressure.
Claims2
In an electrostatographic reproduction system in which a latent electrostatic image is developed by a multi-component developer material including toner particles and relatively larger carrier particles an improved emission control apparatus for suppressing airborne toner particles comprising
- a developer housing having a sump containing multi-component developer material, said multi-component developer material including toner particles and relatively larger carrier particles,
- means for applying said developer material to develop latent electrostatic images and cause at least a portion of said toner particles to become airborne,
- filter means positioned in said housing flush with the sump thereof in the flow path of said developer material to effect continuous cleaning thereof, said filter means including a filter member having a pore size ranging from about 20 microns to about 100 microns,
- said filter means being connected to a source of negative pressure to cause airborne particles to move in the direction of said filter member at a predetermined rate whereby said airborne particles combine with the flowing developer material for pre-filtering thereby prior to reaching said filter member.
Dependencies are inferred from the claim text.